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WR 147 S
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Star WR 147 S

Binary star WR 147 S is located 6504 light years away from the Sun. It consists of a wolf-rayet star and a blue-white star. For now, there are no known exoplanets in this star system.
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Sun distance
6504 light years
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WR 147 S

Wolf-Rayet star
Spectral class: WN8h

Location +

Ascension iconRight ascension: 20h 36m 43.637s
Declination iconDeclination: 40° 21' 7.351'' (northern hemisphere)
Parallax iconParallax: 0.501
Distance iconSun distance: 6,504.407 ly | 1,994.3 pc
Star position
The position of a star tells us where it appears in the sky, similar to how we use coordinates like latitude and longitude on Earth. In astronomy, the three main coordinates are right ascension, declination and distance. .. icon More about Star position in StellarGuide

Basic characteristic

icon weight
Mass: 5100 % M Sun
| 53426 M Jupiter
+
Star mass
Mass of the star WR 147 S is 51 solar masses.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
radius icon
Size: 2980 % R Sun
| 296.5 R Jupiter
+
Star size
Radius of the star WR 147 S is 29.8 solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide
temperature icon
Temperature: 39800 K | 6.89 T Sun
+
Star temperature
Surface temperature of WR 147 S is 39800 K, which is 689 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide
luminosity icon
Luminosity: 1995000 L Sun
+
Star luminosity
Luminosity is the total amount of energy a star gives off every second. Think of it as the star’s true brightness — not just how bright it looks from Earth. This is important because some stars may appear dim simply because they are far away, not because they’re actually faint... icon More about Star luminosity in StellarGuide

Photometry

Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
5
10
15
20
25
30
35
K
2.1
H
1.6
J
1.2
Grp
0.8
I
0.8
G
0.6
V
0.5
Gbp
0.5
B
0.4
U
0.3

WR 147 N

Blue-white star
Spectral class: B0.5V

Basic characteristic

icon weight
Mass: 1310 % M Sun
| 13744.1 M Jupiter
 (estimate)
+
Star mass
The mass of the star WR 147 N is unknown. Based on its other characteristics, it is estimated to be about 1310 % of the Sun's mass.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
radius icon
Size: 918 % R Sun
| 91.4 R Jupiter
+
Star size
Radius of the star WR 147 N is 9.18 solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide
temperature icon
Temperature: 28500 K | 4.93 T Sun
+
Star temperature
Surface temperature of WR 147 N is 28500 K, which is 493 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide
luminosity icon
Luminosity: 50000 L Sun
+
Star luminosity
Luminosity is the total amount of energy a star gives off every second. Think of it as the star’s true brightness — not just how bright it looks from Earth. This is important because some stars may appear dim simply because they are far away, not because they’re actually faint... icon More about Star luminosity in StellarGuide

Photometry

Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
5
10
15
20
25
30
35
K
2.1
H
1.6
J
1.2
Grp
0.8
I
0.8
G
0.6
V
0.5
Gbp
0.5
B
0.4
U
0.3
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WR 147 S system structure

 WR 147 S
WR 147 N

More about WR 147 S

       WR 147 S can be found in northern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.
Other designations of this star
IRAS 20349+4010, 1E 2034+40.1, 2E 4394, 2MASS J20364364+4021075, Gaia DR3 2064671253991921408
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External sources
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Frequently Asked Questions

How far is the WR 147 S system from the Sun?

The WR 147 S system is 6504 light years or 1,994.3 parsecs from the Sun.

What galaxy is the WR 147 S star in?

The WR 147 S is in the Milky Way galaxy just like the Sun.

How many stars are in the WR 147 S system?

The WR 147 S system contains 2 stars.

What type of star is the WR 147 S?

The primary in the WR 147 S system is a Wolf-Rayet star star.

What temperature is star WR 147 S?

The primary in the WR 147 S system has a temperature of 39800 K. Find out more about the temperature of stars in Stellar guide
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